I think the idea that he is here for a look see and a download on the Jets offense is the combined idea. Now, after a couple of weeks, if he doesn't look like an upgrade to Tyree, we might yet see TJ on the practice squad. He did go through camp, and knows the offense (or he should anyhow). If an instant backup is needed, I would not be surprised to see Jackson back in Buffalo this season. Lets hope that isn't the situation, however.